Submission #640444

#	Time	Username	Problem	Language	Result	Execution time	Memory
640444		stevancv	Type Printer (IOI08_printer)	C++14	100 / 100	51 ms	5696 KiB

printer

#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define sp ' '
#define en '\n'
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
using namespace std;
const int N = 2e5 + 2;
const int mod = 1e9 + 7;
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n; cin >> n;
    vector<string> a(n);
    for (int i = 0; i < n; i++) cin >> a[i];
    int mx = 0;
    for (int i = 0; i < n; i++) if (a[i].size() > a[mx].size()) mx = i;
    int sz = a[mx].size();
    vector<int> id(n);
    iota(id.begin(), id.end(), 0);
    sort(id.begin(), id.end(), [&] (int i, int j) {
        int x = a[i].size(); int y = a[j].size();
        for (int p = 0; p < a[i].size(); p++) if (a[i][p] != a[mx][p]) {x = p; break;}
        for (int p = 0; p < a[j].size(); p++) if (a[j][p] != a[mx][p]) {y = p; break;}
        if (x != y) return x < y;
        return a[i] < a[j];
    });
    vector<char> ans;
    for (int i = 0; i < n; i++) {
        if (i > 0) {
            int w = min(a[id[i - 1]].size(), a[id[i]].size());
            for (int j = 0; j < min(a[id[i - 1]].size(), a[id[i]].size()); j++) if (a[id[i - 1]][j] != a[id[i]][j]) {w = j; break;}
            for (int j = 0; j < a[id[i - 1]].size() - w; j++) ans.push_back('-');
            for (int j = w; j < a[id[i]].size(); j++) ans.push_back(a[id[i]][j]);
        }
        else for (int j = 0; j < a[id[i]].size(); j++) ans.push_back(a[id[i]][j]);
        ans.push_back('P');
    }
    cout << ans.size() << en;
    for (auto u : ans) cout << u << en;
    return 0;
}

Compilation message (stderr)

printer.cpp: In lambda function:
printer.cpp:25:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |         for (int p = 0; p < a[i].size(); p++) if (a[i][p] != a[mx][p]) {x = p; break;}
      |                         ~~^~~~~~~~~~~~~
printer.cpp:26:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |         for (int p = 0; p < a[j].size(); p++) if (a[j][p] != a[mx][p]) {y = p; break;}
      |                         ~~^~~~~~~~~~~~~
printer.cpp: In function 'int main()':
printer.cpp:34:31: warning: comparison of integer expressions of different signedness: 'int' and 'const long unsigned int' [-Wsign-compare]
   34 |             for (int j = 0; j < min(a[id[i - 1]].size(), a[id[i]].size()); j++) if (a[id[i - 1]][j] != a[id[i]][j]) {w = j; break;}
      |                             ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
printer.cpp:35:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |             for (int j = 0; j < a[id[i - 1]].size() - w; j++) ans.push_back('-');
      |                             ~~^~~~~~~~~~~~~~~~~~~~~~~~~
printer.cpp:36:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |             for (int j = w; j < a[id[i]].size(); j++) ans.push_back(a[id[i]][j]);
      |                             ~~^~~~~~~~~~~~~~~~~
printer.cpp:38:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |         else for (int j = 0; j < a[id[i]].size(); j++) ans.push_back(a[id[i]][j]);
      |                              ~~^~~~~~~~~~~~~~~~~
printer.cpp:20:9: warning: unused variable 'sz' [-Wunused-variable]
   20 |     int sz = a[mx].size();
      |         ^~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10